@book { SpracheundLebenderfrhmittelalterlichenSlaven,
    title = "Sprache und Leben der frühmittelalterlichen Slaven",
    author = "Elena {Stadnik-Holzer} and Georg {Holzer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135485"
}